java - 如何从具有 int 和 string 的 Job 类生成随机对象

Question

class Job implements Comparable {

    int p;
    String name;

    public Job(String name, int p) {
        this.p = p;
        this.name = name;
    }


    public void execute() {
        System.out.println("Execute job:" + name + " - job p=" + p);
    }

    public int compareTo(Object o) {
        Job x = (Job) o;
        if (p > x.p) {
            return 1;
        } else if (p == x.p)
            return 0;
        else
            return -1;
    }
    public static void main(String[] args) {
        Job j1 = new Job("Writer A",3);
        Job j2 = new Job("Writer B",2);
        Job j3 = new Job("Writer C",1);

        PriorityQueue que = new PriorityQueue();
        que.offer(j1);
        que.offer(j2);
        que.offer(j3);

        while(que.size()!=0){
            Job j = (Job)que.poll();
            j.execute();
        }
    }
}

如何从“Job”类中生成 10 个随机对象，其中包含字段 name 和 p 并将它们添加到我的队列中，直到大小为 20？添加它们应该很容易，但我该怎么做呢？

Answer 1

只需用循环扩展你的 main 方法

public static void main(String[] args) {
    Job j1 = new Job("Writer A",3);
    Job j2 = new Job("Writer B",2);
    Job j3 = new Job("Writer C",1);

    PriorityQueue que = new PriorityQueue();
    que.offer(j1);
    que.offer(j2);
    que.offer(j3);

    // here you go with a loop
    for(int i=0; i<10; i++){
        Job job = new Job('Writer ' + i , i);
        que.offer(job);
    }

    while(que.size()!=0){
        Job j = (Job)que.poll();
        j.execute();
    }
}